Milking-machine.



J. WIIELAERT.

MILKING M-ACHINE.

APPLICATION FILED OCT. 3, 1913.

Patented Apr. 17, 1917.

4 SHEETS-SHEET I.

Inventor: W

W Attorneu.

J. WVIELAEIRT.

MILKING MACHINE.

APPLICATION FILED, ocr. 3. 1913.

Patented Apr. 17, 1917.

4 SHEETS-SHEET 2.

W 1 I I Inventor- 1. WIELAERT.

MILKING MACHINE.

1,223,334. 7 APPLICATION FILED OCT. 3. 1913. Patented Apr. 17 1917.

4 SHEETS-SHEET 3- Attorw,

J. WIELAERT.

MILKING MACHINE.

APPLICATION man OCT. 3. 1913.

1,223,334. Patented Apr. 17, 1917.

4 SHEETS-SHEET 4.

sTATEsrATENT OFFICE.

JOHAN WIELAERT, or REMUERA, AUCKLAND, NEW zEALAND, AssIeNon, BY MESNEASSIGNMENTS, 'IO EDWARD MARSHALL CAMERON MGALPINE, F BROOKLYN, NEW

/ YORK.

To all'whom it may concern:

Be it known that I, JoHAN WIELAERT, a

citizen of the Domimon of New Zealand, residing at Mount Hob son Road,Remuera,

Auckland, Dominion of New Zealand, have invented new and usefulImprovements in Milking-Machines, of which the following isaspecification.

This inventionfrelates. to an improvednnlkingmachlne, andhas beendevised 1n order to provide a cheap, simple and efficient milkingmachine adapted to milk the cow in a much shorter time than has hithertobeen possible, so causing an increased milk fiow.

The essential features of the invention consist in the combination andarrangement of'a suitable vacuum pump, pipe connections, a measuringdevice in order that the milk yield of each cow can be determined, animproved milk receiver, means forimparting an intermittent supply of airto the receiver or releaser, a pulsator and teat cups each having aflexible lining provided with an annular extension at its lower end toallow of an intermittent downward motion to the lining during themilking operation. In order that the invention may be more readilyunderstood, it will now be described with reference to the accompanyingdrawthe pulsator dome.

Fig. 6 is a front elevation of the measuring device constructedaccording to this invention.

Fig. 7 is a view in perspective of the pulsator or intermittent gearcontrolling the delivery of milk to the milk receiver.

Fig. 8 is a view in vertical section of a portion of the milk weighingand measuring device.

Fig. 9 is a view in perspective of the milk receiver constructedaccording to this invention.

MILKINGr-MAGHINE.

Specification of Letters Patent. Patented Apr, 1'7, 191 Applicationfiled october 3, 1913. Serial No. 793,208,

Fig-I0 is a view in vertical section of the teat cups embodied in thisinvention.

ig. 11.-is a horizontal section of thecup lining taken on the line a-aFig. 10.

F1gs. 12, 13 and 14 are views similar to Fig. 11 taken on the lines bb,cc, and

. d03 respectively.

Fig. 15 is-a cross section taken on the I line ee Fig. 8.

fie'd form of pulsator, and,

Fig. 17 is a transverse section thereof suitable engine, which alsoimparts by means of a counter shaft 2, a reciprocating motion to thepulsator 3, the connecting rod 4 of which extends to and is connected tothe strap of an eccentric. amounted at one end to the counter shaft 2.

' i The pulsator 3 consists of a blockor frame mounted upon a suitablebracket 6 fitted to the. cow shed in any convenient position.

The pulsator is divided into two compartments 7, 8, and is adapted atits center 9 to receive a connection 10 from the main -11 by a suitablepipe connection 12, as

hereinafter described'in order that air may be intermittently admittedto the teat cups,

thus breaking down the vacuum and cansing the rubber inflation thereinto produce a squeezing action upon the teat. The connection 10 leads tothe orifice 13 of the central portion of the pulsator, while the pipes12communicate with the orifices 14 and 15 9 is a suitable box or dome 16adapted to slide upon the face of the pulsator frame. This box 16 ishollow as illustrated in Fig.

Fig. 16 is a sectional elevation of a modijvacuum' supply pipe 10 andthis central and is always in communication with the vacuum compartment9 of the pulsator 3. The sliding b02116 is provided with projections orlugs 17 adapted to engage with the connecting rod 1, and, on motionbeing imparted thereto, the box is adapted to slide backward and forwardover the surface of the pulsator frame.

The pulsator frame 3 is recessed at either v end over the aircompartments 7 and 8 and is provided with horizontal segments 18"pivoted at 19 within the recess and which are adapted to swing edgewiseacross the face of the air compartments. These segmentsare each providedwith three slots 20, 21, 22, disposed in staggered formation so as to beadapted to be brought successively into communication with the orifices1e, respectively. The upper races or the segments 18 are flush with theface of the vacuum compartment 9, thereby presenting a smooth slidingsurface for the box or dome 16.

' Unthe end of the stroke, the box 16 is adapted to cover either one ofthe orifices 20, 21 or 22 of the air compartment 8, and vacuum istransmitted to the teat cups through the pipe12. The vacuum is brokendown by uncovering one or other of the orifices20, 21 or 22 at one endof the stroke.

011 the opposite end or the stroke, the

box 16 is adapted to cover either one of the orifices 20., 21 or 22 ofthe air compartment 7 and vacuum is transmitted to another set of teatcups throughthe other pipe '12. On the return stroke, the vacuum isbroken down by admitting air to the air chamber 7 through one or otherof the orifices 20, 21, or 22 in the said air compartment to the cups11.

This operation is carried on intermittently during milking.

Means are thus embodied whereby the dome at one end of the stroke is alonger or shorter time over theair orifice while always being over thevacuum orifice at the other end of the stroke, to produce a longer orshorter squeeze as may be required by the degree of texture or hardnessof the cows' udder or teats.

This is accomplished by means of the segments 18, Whicln'when theorifice 20 is over the orifices 14;, 15, in the air compartment impart along suck and a short squeeze to the teats. 'When the orifice 21 is overthe chambers 7 and 8 an even suck and an even squeeze is imparted to theteats. When the orifice 22 is adjusted, a long squeeze and a' short suckis. imparted to the teats.

The squeeze may be varied in the modified form of constructionillustrated in Figs. 16 and 1'2 the pulsator consisting of a block ahaving a central vertical orifice I) connecting the vacuum supply. Thisorifice b is always in communication with the sliding dome c. The blockis divided into two air compartments d, each compartment communicatingwith the teat cups through orifices 6. Leading vertically to the face ofthe puls tor block-from the compartments d are. a'plurality of spacedorifices f, 7',

the passage of air into the dome a being orifices f are opened a shortersqueeze and.

longer suck will be imparted to the teat than when the orifices ,t' arein operation.

The milk pipe 23 of the teat cups communicates with a suitable milkmeasuring device. This device consists of a suitable cylindrical casing24 within which the milk supply pipe or connection terminates, thecasing being preferably provided with a glass front 25.

Mounted radially around the supply pipe connection 26 are suitablefilling buckets or receivers 27 connected with the pipe 23 by means oftubular connections or arms 28' provided with an orifice leading to thereceptacles, while the opposite ends of the tubular connections or arms28 are adapted, when in a horizontal position, to receive the milkthrough an orifice 29 in the milk pipe connection 26, the milkpassingthrough this orifice 29 and connection 26 through the outlet pipe 30into the bucket or re ceiver 27.

The inner ends of the arms 28 are fitted to a sleeve 31 adapted torotate around the milk pipe connection 26.

The bucket 27, when filling, is adapted to rest upon a pivoted triplever 32 fitted to the frame or casing 2d and provided at its other .endwith a counter-balance weight 33.

Immediately the required amount of milk is delivered into the bucket orreceiver 27, it counteracts the weight 33 on the trip lever 32 and dropsdown, thus delivering the milk into the casing 24, the next orsucceeding milk receiver 27 resting upon the trip lever 32 and. beingthen ready for filling. The casing 24: is always in vacuum, the mainvacuum pipe 10 being connected to the milk tube' connection 26 by aconnection 34 and the milk is immediately withdrawn afterbeing-delivered from the bucket or receiver 27 into the casing 24:through the milk delivery tube 35 and thence to a suitable milk receiverconsisting of a cylindrical or other suitable casing37 provided with apartition 38 at its center. 7

Means such as an air motor (not shown) are adapted to impartreciprocating motion to intermittent gear consisting of a block or plate39 having a box or dome 10 sliding thereon pivotally connected with. the

air motor by means of the rod 41. This Should an air motonbe employed,it may be mounted upon or immediately above the top of the receiver andin any suitable manner. i.

The block or plate39 is provided at each end upon either side'of thepartition 38 with two slots 46, 47 communicating with the correspondingcompartment of the receiver 37. I Delivery pipes 48, 49 project from thcompartments of the milk receiver, the pipes being provided with flapvalves 50, 51. These flap valves are pivoted to their respective pipesas illustrated in Fig. 9.

The dome 40 being operated over the plate 39 at one end of the strokecovers the slots 46, 47 of one compartment 43, and the milk is fedtherein through the pipe 35 and slot- 46. During this operation thecompartment is in vacuum as it is now connected to the main vacuumsupply pipe 10*- by means of the pipe44 and the flap valve 50 is lockedagainst the mouth of the pipe 48.

On the opposite stroke, the dome 40 covers the slots 46,47 of thecompartment 45 and a similar operation takes .place while the orifices46, 47 of the chamber 43,-being free, air is admitted into thecompartmentbreaking downthe vacuumand allowing the milk to flow throughthe pipe 48 into the launder 50 to the milk cans.

,On the release of the vacuum in the com; partment 45 the milkflowsthrough the plpe 49 into the launder 52 as will be read ly unolerstood.I

The teat cups constructed according ,to

this invention are mounted upon a claw 53 and consist of an outer metalcasing 53 provided with a flange 54 at its ,upper end around which theinner flexible lining 55is adapted to fit.

This inner flexible iini a is o ii' shaped in cross section asillustrated in F1gs..11, 12,

13 and 14, the upper portion being the narrower.% f

The sides; 56 of the oval 55 are thick, while the ends 57 are narroweras illustrated in the saidifigures.

The opening -58- of'the lining 55 1s narrower but it I adua'lly widensand the sides 56 become thacker at thelower end as illustrated in Fig.14.

The lower end 59 of the so with a double annular extension 60 thetwo 6base plate 65,screwed ,i

portions of which are'provided with exter-. nal and internal flanges 61,62 respectively. These flanges seat within'annularfgrooves 63, 64,formed around the upper face of a lining is provided nto the lower endof p the casing 63. An internal flange 66 formed upon the innerperipheryof the case 1 is adapted to bear upon and hold the outer flange62 of the annular extension 60. Y The annular extension 60 is open onits underside and forms a hollow compartment 67 communicating with anannular opening or groove 68 in the .base plate which divides the baseplate into two portions the inner portion beingheld 'in position by anysuitable means. .This groove 68 communicates wit-h a pipe 110 or 111connected through. pipe 101 or 102 and one of pipes 12with pulsator 3. Adetachable cap 70 is screw threaded to the lower end of the case 53 andthe depending tube 71 thereof is provided with a central hole 72 leadingto a corresponding hole 73 in the base plate 65 communicating with thein side of the teat cup lining 55, thereby allowing the milk to be drawnthrough the milk pipes 1'00 a nd 23 to the weighing device.

The n1pple74 provided at any convenient portion of the case 53, isconnected through pipes 108, 101 or 109, 102.and one of pipes 12 tothe-pulsator 3 so as to allow when the vacuumis interrupted anintermittentsupply of air pressure to act upon the outside of the lining55.

During each squeezing action, the annular extension drawn toward thebase plate 65 and carries the lining with it, giving a downward motionto the teat, so causing anatural squeez ng action .to be impartedReferring to Fig. 18, which shows the thereto.

claw and teat-cup connections thereto, the

claw comprises three chambers 100, 101, 102.

The chamber. 100 communicates through the pipe-connectionsv 103 with thechamber 58 of the teat cups 104, 105, 106, and 107.

The chamber 101 of the clawcommunii cates through the pipe connections108 with. the chamber 56 of the teat cups 104, 105 and the chamber 102of the claw communicates through the pipe connections 109 with thechamber 56 of the teat cups 106 and-107.

' The annular chambers 67 Fig. 10 of the teat cups 104, 105, communicatewith the chamber 102 of the claw, through the pipes connections 110, andthe annular chambers 67 Fig. 10 ofthe teat cups 106, 107, 'com'mu-.

nicate through the pipe connections 111 with the chamber 101 of theclaw. i

The chamber 101 has no connection with the chamber 102 but communicateswith the chamber 7 through the pipe connection 12 of the 'pulsator Fig.'5 and the chamber 102 communicates with the chamber 8 through thepipe-connection 12 of the'pulsator Fig. 5 and the chamber 100communicates by,

measuring and weighing de-- arranged on the over-head system as abovedescribed, the use of rubber tubing is diminished, the milk yield ofeach cow is effectually determined and the cow is milked in a far moreexpeditious manner than has hitherto been possible, it being readilyunderstood that a plurality of receivers, pulsators, measuring devicesand teat cups may be employed, according to the capacity of the shed.

What I do claim as my invention and desire to secure by Letters Patent,is-

l. A milking machine consisting in the combination of a vacuum pump,teat cups, a claw carrying said teat cups, a pulsatorcommunicating withsaid claw and said teat cups, a milkmeasuring device in connection withsaid vacuum pump arranged above the said claw and in communicationtherewith, a milk receiver divided into two compart ments, andcomprising a plate formed upon the top of same, intermittent gearconsisting of a partitioned dome or box connected with said measuringdevice and the vacuum supply and arranged to slide over the surface ofsaid plate, said dome being adapted to alternately supply milk to saidcompartments, each compartment being held in vacuum during the flow ofmilk thereto, and

delivery pipes fitted to the compartments having flap valves fitted tothe outer ends thereof substantially as described.

2. In a milking machine, in combination with a source of milk supply anda source of vacuum, a milk receiver divided into two compartments by apartition, said compartments having delivery pipes carrying flap valvesat their outer ends, a smooth surface or plate formed on said receiverat the center thereof, having slots through the same on either side ofthe partition and means operating on said plate for alternately placingsaid compartments into communication with said source of vacuum and saidsource of milk supply with the outside air, substantially as described.

3. In a milking machine, vacuum and milk supply pipes, a receiverdivided into two compar tments by a partition and having a serviceplate, having slots therethrough into each compartment of intermittentgear consisting of a dome or box divided into two compartmentsconnecting with said vacuum and milk supply pipes and means for slidingthe said dome over the slotted surface or plate of the receiver in sucha manner that milk is alternately fed into first one and then the othercompartment of the receiver during the milking operation substantiallyas and for the purposes specified.

st. In a milking machine teat cups a milk measuring device consisting ofa casing with a transparent face and provided with an outlet opening, amilk pipe fitted centrally of said casing and communicating with thesaid teat cups, a vacuum pump, a pipe connection between said casing andsaid vacuum pump, a sleeve loosely mounted around the milk pipe withinthe casing, radial tubes carrying buckets or receivers projecting fromsaid sleeve, the ends of said tubes various teats consisting of movableslotted segmental plates adapted to cover the orifices of the outerchambers of the pulsator and a hollow member arranged to slide over theface of the pulsator for interrupting the vacuum applied to the teatcups substantially as described.

6. In a milking machine, a teat cup consisting of an outer metal casingand an inner and oval shaped flexible lining, the opening being narrowerat the upper than at the lower end of the said lining, the ends of theoval being formed of comparatively thin material while the sidesgradually thicken toward the lower end thereof, a

, double annular extension or hollow chamwall of the cup whereby anintermittent pressure is applied to the exterior surface of the lining.

7.1a a milking machine, a source of vacuum supply, a teat cup, a devicefor controlling the vacuum supply to said teat cup, the latter havingafiexible lining, a casing surrounding the same, a double annularextension at the lower end of the Inn ing and forming a hollowcompartment, a

nipple projecting from the casing, means connectmg said nipple with thevacuum supply controlling device and means connecting the aforesaidhollow compartment with said vacuum supply.

8. In a milking machine, pipe connections, a source of vacuum supply, ateat cup having an internal flexible lining fitted with a double annularextension at its lower end forming a chamber communicatingby means ofsuch pipe connections with said source. of vacuum supply substantiallyas described.

9. A milking machine having a teatcuppipe connections, a source ofvacuum supply in communication with said lining by means of such pipeconnections and said hollow compartment and means whereby the vacuum isintermittently applied to said lining and compartment. p

10. In avmilking machine, a source. of vacuum supply, a claw, teat cupscarried by the claw a pulsator comprising a block having a centralchamber, a pipe connecting said central chamber with the Vacuum supply,pipe connections between the pulsator and the claw means for-regulatingthe vacuum to the teat cups, a milk collecting and measuring device inpiped communication with said claw, a milk receiver having separatecompartments and ports for each compartment, aslidable dome communicating with-the vacuumsupply and in piped communication with saidcollecting. and

measuring device and alternately covering and uncovering the ports ofeach compartment. V v i I s '11. In a milking machine, a pulsatordivided with a vacuum supply, a dome adaptvide d into two aircompartments and proed-to slide over the face of the pulsator and meansadapted to control the relative movement of thedome over the orificesleading to; the face of the pulsator-for varying the squeeze in relationto the suck that may be imparted to the teat.

12. The combination with a milking machine comprisin teat cups, meansfor intermittently app ying a vacuum to the said teatcups and milkreceiving means in communication with the said teat cups, of a milkmeasuring. and weighting device located above the said teat cups andbetween the said teat cups and the said milkreceiving means. I p

In witness whereof I affix my signature in the presence of twowitnesses. v

. P v J OHAN WIELAERT..

Witnesses:

T. DAnor HAMILTON, S. E. MAJOR.

